Home / 692,495.60-1,038,639.24-219,119.45

Finding the Fourth Proportional to 692,495.60, 1,038,639.24 and 219,119.45

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Solution

The fourth proportional to 692,495.60, 1,038,639.24 and 219,119.45 is: 328,646.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,495.60 : 1,038,639.24 = 219,119.45 : x
  2. Step 2: Convert to fraction form
    692,495.60/1,038,639.24 = 219,119.45/x
  3. Step 3: Cross multiply
    692,495.60x = 1,038,639.24 × 219,119.45
  4. Step 4: Simplify right side
    692,495.60x = 227,586,053,824.02
  5. Step 5: Solve for x
    x = 227,586,053,824.02/692,495.60
  6. Step 6: Final answer
    x = 328,646.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.